Aoirthoir

Converts plaintext URIs in posts or pages to clickable links. The Make Clickable plugin uses the WordPress make_clickable() function with an add_filter for the_content(). Install, activate and all of your plain text URIs will be clickable.

Make Clickable

Converts plaintext URIs in posts or pages to clickable links.

kr4ft3r

Multisite support added in v0.6!
Notice: this plugin will not have further major updates. If interested in new features, please upgrade into this compatible replacement: https://wit.rs/wp-plugins/wit-custom-output 
After uninstalling the WPCHTMLP and installing WIT Custom Output, your old custom pages will still work, but with better interface, more features and regular updates.
WP Custom HTML Pages plugin has two functionalities:
1 – Create a custom HTML document output at a custom permalink address, completely bypassing WordPress templating. This is useful in cases when you just want to output some HTML without uploading the page to the server.
2 – Create a shortcode which outputs your custom HTML.

WP Custom HTML Page

Display full custom HTML on custom permalink address, or put it inside content as a shortcode.

Make Clickable vs WP Custom HTML Page